PTZ, or pan, tilt and zoom cameras can make a 360-degree sweep of the environment, change angles to look at objects both above and below the camera, and zoom in to give objects greater detail. These cameras are used most often in surveillance situations where remote viewers can track subjects.
PTZ stands for Pan, Zoom and Tilt. This refers to the capabilities of automated cameras and video recorders. Essentially, a PTZ camera is set in a particular place, but has the ability to turn, usually in a complete circle, tilt at different angles both up and down, and zoom in on particular objects.
An indoor PTZ camera, courtesy Brickhouse Security